Tag: Fitness

Day 10: Data First, Theory Second (Why Sherlock Holmes Got It Right)

~ David Willis ~ Leave a comment

I listened to “Made to Stick” this morning during my walk, and I hit the chapter on credibility. The Heath brothers made a point that stopped me cold:

Don’t make up your mind and then go looking for data to prove you’re right. Look for the data to help you make up your mind.

It reminded me of Sherlock Holmes. Arthur Conan Doyle wrote in “A Study in Scarlet”: “It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts.”

Two different sources, separated by over a century. Same truth.

The Temptation

It would be very easy to say: “By March 15th, I’ll weigh 245 pounds. By April 1st, I’ll have my novel published. By June, I’ll have 10,000 social media followers.”

Make up the goal. Hunt for the data to prove it’s possible. Force yourself into unsustainable practices to hit the deadline.

I’ve done this before. Multiple times in my life, actually. And here’s what happens: I hit the deadline (maybe), but the transformation doesn’t stick. The moment the deadline passes, I’m back where I started. Downward spiral. Rinse, repeat.

Why the 7-40 Challenge Is Different

The physiology of weight loss doesn’t work on my timeline. Exercise recovery doesn’t care about my deadline. Sustainable habits don’t emerge from forcing performance.

So instead of demanding that the data conform to my goal, I’m letting the goal emerge from the data.

Seven daily habits. That’s my theory.

Bible study. Exercise. Reading. Water. Calories. Gratitude. Creative work.

I’m not promising you specific results by specific dates. I’m collecting data through daily practice. And I’m letting that data tell me where I’m headed.

Weight loss? It’s happening (3.7 pounds in 9 days), but I’m not demanding it hit a certain number by a certain date. The data will tell the story.

Novel revision? I’m at 50 chapters. Not because I promised myself 50 by Day 10, but because the daily habit of creative hour produces consistent output. The data shows up.

Social media strategy? Still figuring it out. No false promises. Just daily attempts and learning.

The Sustainable Difference

By committing to the practices instead of the deadlines, I’m building something that becomes part of who I am. Not a sprint to a finish line. A permanent shift in daily behavior.

Sherlock Holmes didn’t demand the facts bend to his theory. He collected evidence and followed where it led. That’s credibility. That’s how you build real transformation instead of false performance.

I don’t want to hit a goal and bounce back. I want sustainable change that sticks because it’s now my daily rhythm, not an unsustainable forced performance.

Day 10 Scorecard: ✅ Bible study ✅ Exercise ✅ Reading ✅ Gratitude ✅ Water, calories, creative hour

Ten consecutive perfect days. Data collecting. Theory emerging.

The best time to stop making up your mind and start collecting data? Now.

See you tomorrow for Day 11.

Day 8: Why I’m Still Walking (And Why You Should Too)

~ David Willis ~ Leave a comment

Seven days down. One week of perfect execution.

This morning I laced up for my walk thinking about something unexpected: I never saw this coming.

When I was younger, walking was what old people did. Real exercise meant running, lifting, sweating buckets. Walking? That was just… transportation.

At 47, walking is one of my favorite parts of the day.

Not the lifting (though Workout B yesterday destroyed me in the best way). Not the yoga. The walk.

Here’s why that matters for the 7-40 Challenge: Simple works. Sustainable beats intense.

Hippocrates said it 2,000 years ago: “Walking is man’s best medicine.” He was right then. He’s right now.

Three reasons walking wins:

Fresh air. Whether it’s scorching summer or crisp winter, stepping outside and filling my lungs pulls me away from screens and routines. It resets my energy in a way indoor workouts can’t match.

Audiobook time. I’m working through “Made to Stick” while walking. Physical movement + mental input = how I learn best. Double productivity.

My brain needs motion. I’m still that energetic kid who thinks better while moving. At 47, I feel it every time—blood pumping wakes up my brain. Nietzsche nailed it: “All truly great thoughts are conceived by walking.”

The practical magic: Walking is low-impact. Easy on joints. No jarring bounces or overuse injuries. It strengthens your heart, aids weight management, releases endorphins that lift your mood. And it’s accessible—no gym required, no equipment needed.

Just shoes and intention.

I never thought I’d be the guy who loves his daily walk. But here I am, Day 8, proving that the best habits are often the simplest ones.

The best time to start walking? Now. Not when you’re “in better shape.” Not when the weather’s perfect. Now.

Lace up. One mile. See how you feel.

Day 8 Scorecard: ✅ Bible study ✅ Exercise (walk + more today) ✅ Reading ✅ Water, calories, gratitude ✅ Creative hour

Eight consecutive perfect days. The simple habits stack.

What’s your go-to movement? Drop a comment—let’s build a community of people actually doing the work.

See you tomorrow for Day 9.

Day 5: Why I Got Up at 5:00 AM

~ David Willis ~ Leave a comment

My alarm went off at 5:00 this morning. Not because I’m a morning person—I’m not. But because I made myself a promise: all workouts done by noon during these first rounds of the 7-40 Challenge.

An hour of exercise doesn’t happen by accident.

Eight years ago, I was in a hospital bed with a 13 cm tumor. Chemo. Surgery. Radiation. By God’s grace, I’m cancer-free. But that door? I don’t ever want it to open again.

So I get up. I move. I lift.

Today was my first free weight workout of the year—incline press, standing press, triceps work. My shoulders are already telling me tomorrow’s going to hurt. Good. That means it’s working.

Here’s what daily exercise gives me:

Mobility I can’t take for granted. At 47, I notice how quickly things tighten up. Daily movement keeps me loose and energized.

Strength for real life. Not just gym strength—the kind that lets me help around the house, take long walks, tackle whatever comes without hesitation.

A fighting chance. Exercise strengthens my body and acts as a defense against the illness I’ve already beaten. It’s a tool to help me fulfill my purpose: caring for my family and making a difference in the world.

Thomas Jefferson wrote to his nephew: “Give about two hours every day to exercise; for health must not be sacrificed to learning. A strong body makes the mind strong.”

I’ll be honest—I’m carrying more weight than I should be…over 40 pounds more. That’s exactly why I’m committing to an hour daily right now. Once I’ve made progress, I’ll ease back to 30 minutes for maintenance.

For some, exercise is already solid and other areas need work. For me, this is a focal point.

The best time to start? Not Monday. Not next month. Today. The best time to start is NOW.

What’s your focal point in your own challenge? Drop a comment—let’s keep each other moving.

See you tomorrow for Day 6.

Reevaluating the 7-40 Challenge: Habits, Identity, and Becoming Who I’m Meant to Be

~ David Willis ~ Leave a comment

Hey there, friends! Welcome back to the 7-40 Challenge. It’s a bright, shiny day out there, and honestly, I’m to be out in it and writing these words. If you’ve been following along on my blog, you know I’ve been all in on this journey of building seven daily habits over 40-day cycles. It’s my way of zeroing in on consistency, one small step at a time, to spark real transformation in my life.

Lately, though, I’ve been taking a hard look at the goals laid out in front of me—tweaking, rethinking, and reworking what they look like moving forward. One habit I’ve been crushing is my daily 30 minutes of reading. Over the past three months, I’ve powered through nine full books and dipped into several others. It’s been incredible, and I’m fired up to keep that momentum going. But as I am in the midst of my third round of the challenge, something’s been nagging at me: Are these habits aligning with what I want to achieve? Or the person I want to become?

This hit home while I was diving into Atomic Habits by James Clear—the book I’m currently wresting with. He drops this gem: “The process of building habits is the process of becoming yourself.” At first, I paused and thought, Wait, aren’t I already me? But after mulling it over, it clicked. We’re not static; we’re works in progress. These programs we set up aren’t just about checking boxes or knocking out tasks. They’re about evolving into a different—hopefully better—version of ourselves. It’s not about the habits for habits’ sake; it’s about the identity they shape.

That realization made me reflect on how, in this latest cycle, I’ve caught myself going through the motions on a few of these habits. My original intention was to dial in harder, to optimize and elevate them. But after those first few chapters of Atomic Habits, I saw the gap: I need to crystal-clear define who I want to become. Only then can my daily actions truly propel me in that direction.

And then Annie Dillard landed the knockout punch with one sentence that’s been living rent-free in my head:

“How we spend our days is, of course, how we spend our lives.”

That’s it. No fluff, no loopholes. The 30 minutes I give to reading, the way I show up (or don’t) for my workouts, the quiet moments I protect for prayer and reflection—these aren’t just line items on a habit tracker. They’re the raw material of my life. If I’m half-hearted today, I’m half-hearted forever. If I’m intentional today, that intention compounds into the person I’ll look back on years from now.

So yeah, I’m hitting pause. Not quitting—just stepping back for a few days to get brutally honest about the “who.” Who am I becoming with every sunrise? Are these seven habits still the truest expression of that person, or do I need to adjust some of them? None of them are bad (they’re actually really good), but good can be the enemy of great when it’s not aligned.

I’ll be doing some deep thinking, a lot of head-scratching, probably more than a little praying, and asking the big questions:

• What kind of man do I want standing here in five years?

• What daily practices will make that version of me inevitable?

Thanks for riding shotgun on this reflective detour. I’ll be back tomorrow with whatever clarity (or beautiful mess) comes out of this reset. Until then—let’s keep choosing our days on purpose. Because as Annie reminded me, that’s exactly how we choose our lives.

See you on the other side.

Keep Getting Better: Day 8 of the 7-40 Challenge

~ David Willis ~ Leave a comment

Hello, friends. Welcome to Day 8 of Round 3 in the 7-40 Challenge. It’s a bright, sunshiny day—perfect for a lunchtime walk that’s lifting my mood and shifting my outlook on everything else in life.

I was just listening to See You at the Top by Zig Ziglar, and one line stopped me in my tracks. He said: “When we stop getting better, not long after, we will soon no longer be good at what we do.”

Let that sink in. When we stop getting better, we cease to be good.

I’ve been turning this over in my mind, applying it to a few corners of my own life to see if it holds water. Spoiler: it does.

In My Day Job

If I coast on what I know today—doing the job exactly as I do it now—I’ll earn a paycheck for a while. But technology doesn’t pause. Innovations will sprout up around me, and before long I’ll be out of step, unable to perform at the level I once did. The world changes; if I stay the same, I become obsolete.

As the industrialist Andrew Carnegie once observed, “The only irreplaceable capital an organization possesses is the knowledge and ability of its people. The more you develop that, the more valuable it becomes.” Resting on yesterday’s skills is a quiet way to watch your value erode.

In My Marriage

If I stop investing in my relationship—stop dating my wife, stop deepening the connection—our marriage risks becoming less than we dreamed. Frustrations creep in, fulfillment fades. Without continual improvement, what’s good today won’t stay good tomorrow.

As a Dad

I love my son fiercely. I want a strong relationship with him as he grows, and I want him to become a happy, healthy, well-adjusted man grounded in faith, hope, and a deep belief in God. That doesn’t happen on autopilot. I have to keep instructing, keep loving, keep teaching him how to navigate a world full of dangers, how to resist temptation, how to stand tall as a man in a culture that increasingly makes it hard.

If I stop improving as a father, what I have will cease to be good.

In My Health

That’s why I’m out here walking, why I’m carving out an hour to work out, why I’m pushing to return to optimal levels. I feel better, yes—but more importantly, I’m ensuring the day never comes when I’m no longer able to move, to play, to keep up.

The inventor Thomas Edison put it bluntly: “If we did all the things we are capable of, we would literally astound ourselves.” Improvement isn’t just a nice-to-have; it’s the only sustainable path.

The Bottom Line

Improvement isn’t optional. It’s the price of staying good at anything that matters. It demands change, growth, and occasional discomfort. But the alternative—stagnation—is far costlier.

I want to be more and do more than I am today.

I want to be more for my family.

I want to be more in my career.

I want to be more for everyone I influence.

I want to keep getting better.

Wherever you are, whatever you’re doing—thank you for reading these words. I appreciate you. I’m grateful for you. And I hope you, too, are striving to become the best version of yourself.

See you tomorrow for Day 9.